-STUDY MATERIAL FOR REFEREES-

IN OUR SECTION OF "STUDY MATERIALS FOR REFEREES"(MATERIALES DE ESTUDIO PARA ÁRBITROS-IN SPANISH-) WE ADDING A LINK "APP THE RULES" BY THE MEMBER OF THE FIVB MR. GUY BRADBURY, WE INVITE YOU TO KNOW IT, THE MATERIAL IS IN ENGLISH. WE BELIEVE THIS IS VERY HELPFUL FOR REVIEW THEORETICAL KNOWLEDGE OF THE RULES. THERE IS A FREE VERSION AND OTHER FOR MEMEBERS.